Hip joint prosthesis



FIG. 1 is a side elevational view of the hip joint prosthesis showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom view thereof.

The characteristic features of my hip joint prosthesis reside in the overall shape of the design in combination with the lower end flange. 

The ornamental design for a hip joint prosthesis, as shown and described. 